Part 3: Uprev is Fixing and tunning my SC Z...
Thread Starter
Joined: Mar 2007
Posts: 5,311
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From: Dallas/NewYork/Michigan/Korea
Part 1: Hal@IP tuned (3.12/utec)
Part 2: Chris Macellaro tuned(2.87/utec)
Part 3 is comming...( 2.87/Osiris )
Not about build motor yet
But here is my processing story, but let's make it short.
2 weeks ago, i sent my car to uprev. Jared and i talked about sell the kit or keep the kit, we decided to start from compression/leak test. After couple days, jared told me test came out really good, so i decided to keep the SC and asked jared to handle it for me.
Here is things changed.
Installed/replaced
- GTM RFS ( no rails, like other company stage 0 kit. GTM has little diff setup for their stage 0. What i got is not on their website, but you can call and ask them about it. )
- Modif MAF sensor
- new rotors/pads
- New TB ( nothing wrong with old one )
- tunning via osiris.
Removed
- Snow performance kit
- Utec
Yesterday, i got a text message from jared about good/bad news.
Good news was jared fixed my rough idle
which was biggest issue for me. And...bad news is Jared can only get the power up to 320 whp then it starts to ping/detonate
. Now jared is going to do some more trouble shooting to figure it out. Hopefully i can hear good news from him soon.
Thanks to uprev guys, especialy jared...
I appreciate that understand my situation and helping me out. I really do...
Problems after problem...First time FI, i might not have a luck with FI, but i think i have a luck with tuners/sponsors.
I'm still around...will update it soon.
Edit: Dyno sheet On page 5
Part 2: Chris Macellaro tuned(2.87/utec)
Part 3 is comming...( 2.87/Osiris )
Not about build motor yet
But here is my processing story, but let's make it short. 2 weeks ago, i sent my car to uprev. Jared and i talked about sell the kit or keep the kit, we decided to start from compression/leak test. After couple days, jared told me test came out really good, so i decided to keep the SC and asked jared to handle it for me.
Here is things changed.
Installed/replaced
- GTM RFS ( no rails, like other company stage 0 kit. GTM has little diff setup for their stage 0. What i got is not on their website, but you can call and ask them about it. )
- Modif MAF sensor
- new rotors/pads
- New TB ( nothing wrong with old one )
- tunning via osiris.
Removed
- Snow performance kit
- Utec
Yesterday, i got a text message from jared about good/bad news.
Good news was jared fixed my rough idle
which was biggest issue for me. And...bad news is Jared can only get the power up to 320 whp then it starts to ping/detonateThanks to uprev guys, especialy jared...
I appreciate that understand my situation and helping me out. I really do...
Problems after problem...First time FI, i might not have a luck with FI, but i think i have a luck with tuners/sponsors.

I'm still around...will update it soon.
Edit: Dyno sheet On page 5
Last edited by Chef-J; Jul 30, 2009 at 03:12 PM.
So you're ditching the UTEC completely and just use the stock ECU with the Osiris tune? INteresting... I want to see how this one goes. A local shop in Mid-A is starting to do a lot of Osiris tune on N/A cars and they all were very satisfy with the result especially on what they call the "partial throttle tune". I wonder how well this will work on FI'ed cars.
That would TERRIFY me using a reflash. There is no knock detection over 5k rpms. If you are knocking enough below 5k for him to kill the power like that, you can kiss your motor goodbye in short order. You could be pinging like mad at "I guess this is safe timing above 5k" and never know!
Part 1: Hal@IP tuned (3.12/utec)
Part 2: Chris Macellaro tuned(2.87/utec)
Part 3 is comming...( 2.87/Osiris )
And...bad news is Jared can only get the power up to 320 whp then it starts to ping/detonate
. Now jared is going to do some more trouble shooting to figure it out. Hopefully i can hear good news from him soon.
.
Part 2: Chris Macellaro tuned(2.87/utec)
Part 3 is comming...( 2.87/Osiris )
And...bad news is Jared can only get the power up to 320 whp then it starts to ping/detonate
.
Trending Topics
So you're ditching the UTEC completely and just use the stock ECU with the Osiris tune? INteresting... I want to see how this one goes. A local shop in Mid-A is starting to do a lot of Osiris tune on N/A cars and they all were very satisfy with the result especially on what they call the "partial throttle tune". I wonder how well this will work on FI'ed cars.
Last edited by djamps; Jul 8, 2009 at 06:00 AM.
Thread Starter
Joined: Mar 2007
Posts: 5,311
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From: Dallas/NewYork/Michigan/Korea
That would TERRIFY me using a reflash. There is no knock detection over 5k rpms. If you are knocking enough below 5k for him to kill the power like that, you can kiss your motor goodbye in short order. You could be pinging like mad at "I guess this is safe timing above 5k" and never know!
So you're ditching the UTEC completely and just use the stock ECU with the Osiris tune? INteresting... I want to see how this one goes. A local shop in Mid-A is starting to do a lot of Osiris tune on N/A cars and they all were very satisfy with the result especially on what they call the "partial throttle tune". I wonder how well this will work on FI'ed cars.
Had osiris reflash + Utec and now osiris. I can not comment anything about osiris yet, since i didn't even get to see my car yet. But i will update with how it turns out and etc.
Last edited by Chef-J; Jul 8, 2009 at 06:42 AM.
You need to come out to meets more often. I want to check out your car more, especially since you changed some things.
Thread Starter
Joined: Mar 2007
Posts: 5,311
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From: Dallas/NewYork/Michigan/Korea
I didn't even get to use my helmet. T.T
I'm about to do just part time at my work, now I got a another job to taking care of. Wish have enough time to go every meet and track, but too bad my life won't let me breath for second.
You will see me around for sure
I'm about to do just part time at my work, now I got a another job to taking care of. Wish have enough time to go every meet and track, but too bad my life won't let me breath for second.
You will see me around for sure
Lower intake temps, higher compression, more timing safely and more knock retard with the meth injection. I can see power going down for removing that.
Thread Starter
Joined: Mar 2007
Posts: 5,311
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From: Dallas/NewYork/Michigan/Korea
I'm not looking for more power at this time. More focus on reliable for FI DD.
Last edited by Chef-J; Jul 8, 2009 at 09:08 PM.
Thread Starter
Joined: Mar 2007
Posts: 5,311
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From: Dallas/NewYork/Michigan/Korea
Jared ordered new DW injectors from his pocket to just test it out ( Thanks jared ). He will contact IP if that turns out to be problem, so IP can get them replaced under warranty.
That would TERRIFY me using a reflash. There is no knock detection over 5k rpms. If you are knocking enough below 5k for him to kill the power like that, you can kiss your motor goodbye in short order. You could be pinging like mad at "I guess this is safe timing above 5k" and never know!
+1 UNLESS Uprev has compensated for this knock protection with some update, it is scary to have it as the only only big brother on-board.




